ILLUSTRATIONS. XIII 



Pago 



Fig. 37. Grooved ax, sUowiug tlatteueil straight l)ack 68 



38. Grooved ax, Keokuk typa 69 



39. Grooved ax, showing adze form 69 



40. Grooved ax, showing diagonal groove 69 



41. Grooved ax, showing wide edge 69 



42. Grooved ax, showing curved edge 70 



43. Grooved ax, showing single groove projection 70 



44. Grooved adze 71 



45. Grooved adze, showing curved blade 71 



46. ^Notched ax, showing polislied edge 72 



47. Celt, showing Idade thick near edge 73 



48. Celt, showing lilade thi<'k near edge 73 



49. Celt, showing loug, slender form 74 



50. Celt, nearly round section 75 



51. Celt, nearly round section 75 



52. Celt, showing nearly diiinioud section 76 



53. Celt , 77 



54. Celt 77 



55. Celt 77 



56. Celt, showing "bell-shape" and roughening for handle 78 



57. Celt, showing rectangular section 78 



58. Celt, showing wedge-shape 79 



59. Celt, showing half-elliiitical section 79 



60. Celt, showing half-ellii)tical section 81 



61. Celt, showing concave sides 81 



62. Thin, polished celt 82 



63. Thin, polished celt 82 



64. Thin, polished celt 82 



65. Celt, showing thin, gouge-form edge 83 



66. Celt, chisel-form 83 



67. Celt, chisel-form 83 



68. Celt, chisel-form 83 



69. Celt, chisel-form 84 



7.0 Cel t, chisel-form 84 



71. Celt, showing scraper-form edge 85 



72. Scraper 85 



73. Scrajier or adze, with projecting ridge 85 



74. Adze or scraper 85 



75. Chipped celt 86 



76. Chipped celt 86 



77. Chipped celt 86 



78. Hematite celt 87 



79. Hematite celt 87 



80. Henuitite celt 87 



81. Hematite celt 87 



82. Handled pestle, with expanding Ijase 88 



83. Pestle, long cylindrical form 89 



81 . Pestle, conical 89 



85. Pestle 90 



86. Pestle 90 



87. Pestle, grooved for handle 90 



88. Pestle 90 



89. Cupped stone or paint cup 93 



90. Muller, showing polished surface 93 



91. Muller, showing polished surface 94 



